Scottish term days
Scottish term and quarter days are the four divisions of the legal year, historically used as the days when contracts and leases would begin and end, servants would be hired or dismissed, and rent, interest on loans, and ministers' stipends would become due. The Term Days are Whitsunday and Martinmas, and together with Candlemas and Lammas they constitute the Quarter Days. Although they originally occurred on holy days, corresponding roughly to the old Celtic quarter days, they were fixed by the Term and Quarter Days (Scotland) Act 1990 as falling on the 28th day every three months, thus:
Whitsun was originally the feast of Pentecost, around which a great many christenings would occur, so it became associated with the colour white. Because the date of Pentecost moves each year, the legal Term Day of Whitsun was fixed in Scotland as 26 May in the Julian Calendar, which became 15 May under the Gregorian Calendar, adopted in Scotland in 1599.
Lammas was celebrated on 1 August, the day the first fruits of the harvest were offered, the name coming from the Anglo-Saxon for 'loaf-mass' or 'bread-feast'.
Martinmas, on 11 November, was originally the feast of Saint Martin of Tours, a 4th century bishop and hermit.
In Scotland, 1886 saw the term dates for removals and the hiring of servants in towns changed to 28 February, 28 May, 28 August and 28 November. The original dates are now referred to as Old Scottish Term Days. The dates were regularised by the Term and Quarter Days (Scotland) Act 1990.
Modern use 
The College of Justice (supreme courts of Scotland) no longer uses the term or quarter days to determine the terms of the Court of Session or High Court, instead dividing the legal year into winter (late September to last Friday before Christmas), spring (early January to late March) and summer (late April to early July) terms.
In the ancient universities, the academic terms were named after Martinmas, Candlemas and Whitsun, and at the University of St Andrews the two semesters continue to be named Martinmas and Candlemas.
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